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Run processing in thread

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This commit is contained in:
Mark Veidemanis
2022-09-04 21:29:00 +01:00
parent 22cef33342
commit db46fea550
7 changed files with 152 additions and 85 deletions
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134
sources/ch4.py
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@@ -1,11 +1,9 @@
# Python modules can't start with a number...
import json
import ujson
import random
import string
from datetime import datetime
from typing import Any, Dict
import treq
from bs4 import BeautifulSoup
from siphashc import siphash
@@ -14,6 +12,11 @@ import util
from schemas.ch4_s import ATTRMAP
import aiohttp
import asyncio
from numpy import array_split
from math import ceil
from concurrent.futures import ProcessPoolExecutor
p = ProcessPoolExecutor(10)
class Chan4(object):
"""
@@ -25,7 +28,8 @@ class Chan4(object):
self.log = util.get_logger(name)
self.api_endpoint = "https://a.4cdn.org"
self.boards = ["out"]
#self.boards = ["out", "g", "a", "3", "pol"] #
self.boards = []
self.thread_list = {}
#self.thread_deferreds = []
@@ -48,13 +52,13 @@ class Chan4(object):
await self.get_board_list()
async def get_board_list(self):
# responses = await self.api_call({"_": "boards.json"})
# for mapped, response in responses:
# if not response:
# continue
# for board in response["boards"]:
# self.boards.append(board["board"])
# self.log.debug(f"Got boards: {self.boards}")
responses = await self.api_call({"_": "boards.json"})
for mapped, response in responses:
if not response:
continue
for board in response["boards"]:
self.boards.append(board["board"])
self.log.debug(f"Got boards: {self.boards}")
await self.get_thread_lists(self.boards)
@@ -82,59 +86,90 @@ class Chan4(object):
self.log.debug(f"Getting information for threads: {thread_urls}")
responses = await self.api_call(thread_urls)
self.log.debug(f"Got information for threads: {thread_urls}")
all_posts = {}
for mapped, response in responses:
if not response:
continue
board, thread = mapped
self.log.debug(f"Got thread content for thread {thread} on board {board}")
await self.handle_posts(board, thread, response["posts"])
all_posts[mapped] = response["posts"]
async def handle_posts(self, board, thread, posts):
for index, post in enumerate(posts):
posts[index]["type"] = "msg"
# Split into 10,000 chunks
# split_posts = array_split(all_posts, ceil(len(all_posts) / 10000))
# print("SPLIT CHUNK", len(split_posts))
# for posts in split_posts:
# with futures.ThreadPoolExecutor(max_workers=6) as executor:
# print("SUBMITTED THREAD FOR", len(posts))
# executor.submit(self.handle_posts, board, thread, posts)
#await self.handle_posts(board, thread, response["posts"])
#await asyncio.sleep(1)
await self.handle_posts_thread(all_posts)
# Calculate hash for post
post_normalised = json.dumps(post, sort_keys=True)
hash = siphash(self.hash_key, post_normalised)
hash = str(hash)
redis_key = f"cache.{board}.{thread}.{post['no']}"
key_content = db.r.get(redis_key)
if key_content:
key_content = key_content.decode("ascii")
if key_content == hash:
return
else:
posts[index]["type"] = "update"
db.r.set(redis_key, hash)
@asyncio.coroutine
def handle_posts_thread(self, posts):
loop = asyncio.get_event_loop()
print("HANDLE POSTS THREAD", len(posts.keys()))
yield from loop.run_in_executor(p, self.handle_posts, posts)
for key, value in list(post.items()):
if key in ATTRMAP:
post[ATTRMAP[key]] = posts[index][key]
del posts[index][key]
if "ts" in post:
old_time = posts[index]["ts"]
# '08/30/22(Tue)02:25:37'
time_spl = old_time.split(":")
if len(time_spl) == 3:
old_ts = datetime.strptime(old_time, "%m/%d/%y(%a)%H:%M:%S")
else:
old_ts = datetime.strptime(old_time, "%m/%d/%y(%a)%H:%M")
new_ts = old_ts.isoformat()
posts[index]["ts"] = new_ts
if "msg" in post:
soup = BeautifulSoup(posts[index]["msg"], "html.parser")
msg = soup.get_text(separator="\n")
posts[index]["msg"] = msg
def handle_posts(self, posts):
print("HANDLE POSTS START")
to_store = []
for key, post_list in posts.items():
board, thread = key
print("PROCESSING BOARD", board, "THREAD", thread)
print("POSTS HERE", len(post_list))
for index, post in enumerate(post_list):
posts[key][index]["type"] = "msg"
posts[index]["src"] = "4ch"
# Calculate hash for post
post_normalised = ujson.dumps(post, sort_keys=True)
hash = siphash(self.hash_key, post_normalised)
hash = str(hash)
redis_key = f"cache.{board}.{thread}.{post['no']}"
key_content = db.r.get(redis_key)
if key_content:
key_content = key_content.decode("ascii")
if key_content == hash:
continue
else:
posts[key][index]["type"] = "update"
#db.r.set(redis_key, hash)
for key2, value in list(post.items()):
if key2 in ATTRMAP:
post[ATTRMAP[key2]] = posts[key][index][key2]
del posts[key][index][key2]
if "ts" in post:
old_time = posts[key][index]["ts"]
# '08/30/22(Tue)02:25:37'
time_spl = old_time.split(":")
if len(time_spl) == 3:
old_ts = datetime.strptime(old_time, "%m/%d/%y(%a)%H:%M:%S")
else:
old_ts = datetime.strptime(old_time, "%m/%d/%y(%a)%H:%M")
new_ts = old_ts.isoformat()
posts[key][index]["ts"] = new_ts
if "msg" in post:
soup = BeautifulSoup(posts[key][index]["msg"], "html.parser")
msg = soup.get_text(separator="\n")
posts[key][index]["msg"] = msg
posts[key][index]["src"] = "4ch"
to_store.append(posts[key][index])
# print({name_map[name]: val for name, val in post.items()})
#print(f"Got posts: {len(posts)}")
await db.store_message_bulk(posts)
print("HANDLE POSTS DONE")
db.store_message_bulk(to_store)
print("STORE DB DONE")
async def fetch(self, url, session, mapped):
async with session.get(url) as response:
return (mapped, await response.json())
try:
return (mapped, await response.json())
except:
print("FETCH ERROR")
return (mapped, None)
async def bound_fetch(self, sem, url, session, mapped):
@@ -143,6 +178,7 @@ class Chan4(object):
try:
return await self.fetch(url, session, mapped)
except:
print("BOUND ERROR")
return (mapped, None)
async def api_call(self, methods={}):